I don't do social media, YouTube included, nor do I understand which video should the players comment (the above link leads to Plarium's channel, not a video). Anyway, since we already had this puzzle, let me help my fellow pirates: 81.

A ship is obviously 20. So, a squid is (30-20)/2 = 5. However, notice that it has 5 arms, and the one below has 4. This is a "trick", so the one below is 4, not 5.

From the 3rd equation, we see that two barrels are 5-3=2, so a barrel is one.

nor do I understand which video should the players comment (the above link leads to Plarium's channel, not a video).

You need to comment here, not under the video :)

Plarium Community Manager. Please note that I will be unable to respond to your private messages, review your tickets, or check your account information. All technical issues should be directed to our Support Team at plrm.me/Support_Plarium

Such answer deserves a special reward Can you guess how many Rubies I've sent you?

Plarium Community Manager. Please note that I will be unable to respond to your private messages, review your tickets, or check your account information. All technical issues should be directed to our Support Team at plrm.me/Support_Plarium

Plarium Community Manager. Please note that I will be unable to respond to your private messages, review your tickets, or check your account information. All technical issues should be directed to our Support Team at plrm.me/Support_Plarium